We describe an experimental testbed which we have constructed to study carangiform fish-like swimming. We mimic a carangiform fish with a three-link robot, the tailfin link of which acts as a flat-plate hydrofoil. We experiment with sinusoidal signals to the joint actuators. The experimental results agree well with a simulation assuming quasi-steady flow around the tailfin. 1. Motivation Many f...

Clozapine (an atypical antipsychotic drug) is indicated in treatment-refractory schizophrenia. Antipsychotics have been reported to have cardiotoxic effects in humans.The zebra fish (Danio rerio) is a tropical cyprinid used in toxicological research. In the present study, the toxicity of clozapine was evaluated in zebra fish embryos with the aid of the fish embryo toxicity test (FET). The endpo...

Increasingly, our everyday environments become more and more connected and “smart”. Intelligent Interactive Systems (IIS) is an umbrella term to describe environments that are characterized by their ability to process data and generate responsive behavior using sensors, actuators, and microprocessors. Sentient Architecture generates an artful, imaginative, and engaging environment in which we c...

Contamination of the environment with heavy metal ions has been an important concern throughout the world for decades. Here we discuss our recent effort on the development of a miniaturized and battery operated ultrasensitive gold nanoparticle based nanomaterial surface energy transfer (NSET) probe for screening toxic metal levels in contaminated soil, water and fish which has excellent sensiti...

Abstract The Islamic veil is a subject of intense controversy in many Western countries. In particular, it remains an open question whether banning the schools prevents female Muslim students from engaging normal schooling, or policy that promotes their integration. We shed light on this by exploring effects 1994 ministerial circular required French to ban veils. show coincided with significant...

A new semi-quantitative analytical method for mercury determination in gold prospecting areas, and 16 new local users, 5 in Itaituba-Brazil and 11 in ManadoIndonesia, were trained for using it as an alternative and low cost method for mercury determination in fish in August and September 2003. This experience demonstrated the spreading potential throughout those areas of such low-cost method an...

iv asymmetrically to selection. There was also a correlated response of body size. Furthermore, no evidence was found for the previously proposed sexual advertisement functions. All of this is inconsistent with the view that such trait is under strong directional sexual selection. It seems more likely that either non-adaptive processes currently shape the distribution of eggspot numbers or that...

This study reports the first results on telemetry of caudal differential pressure during spontaneous swimming activity in cod Gadus morhua and demonstrates that tail-beat pressure may be used as a predictor of activity and swimming costs of free-swimming cod. Tail-beat pressure was monitored using a differential pressure sensor on the caudal peduncle of cod and spontaneous swimming activity was...

It is well known that fish caudal fins can be completely regenerated after fin amputation. Although much research on fin regeneration has been carried out, there have been very few reports regarding fin regeneration after tail amputation. In this study, we used grass carp, common carp, koi carp, and zebrafish as experimental organisms. Some caudal fins could be distinctly regenerated in 2 weeks...